Railroad Archives Online
- CollectionD0335.2 - Northern Pacific Railway Historical Association Depot Photograph Collection
- Series004 - Northern Pacific Railroad Company
- Subseries Level 1014 - Photographs
- Subseries Level 2003 - Railroads--Buildings and Structures
- Subseries Level 3002 - Depots and Freighthouses
- 556 more...
- ItemNPDepot0557 - Northern Pacific Depot at Sunnyside, Washington, undated
- ItemNPDepot0558 - Northern Pacific Depot at Superior, Wisconsin, circa 1960
- ItemNPDepot0559 - Northern Pacific Depot at Sykeston, North Dakota, 1970
- ItemNPDepot0560 - Northern Pacific Depot at Tacoma, Washington, circa 1875
- ItemNPDepot0561 - Northern Pacific Depot at Tacoma, Washington, circa 1885
- ItemNPDepot0562 - Northern Pacific Depot at Tacoma, Washington, circa 1900
- ItemNPDepot0563 - Northern Pacific Depot at Tacoma, Washington, circa 1900
- ItemNPDepot0564 - Northern Pacific Depot at Tacoma, Washington, circa 1911
- ItemNPDepot0565 - Northern Pacific Depot at Tacoma, Washington, circa 1915
- 96 more...